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A025960
Expansion of 1/((1-2x)(1-4x)(1-5x)(1-8x)).
0
1, 19, 235, 2415, 22491, 197799, 1679875, 13959055, 114403531, 929407479, 7508252115, 60439364895, 485415209371, 3892957335559, 31192373841955, 249784713973935, 1999514917852011, 16002339732726039, 128049957250049395, 1024556404696890175, 8197237170079803451
OFFSET
0,2
FORMULA
a(n) = (8^(n+3)-8*5^(n+3)+9*4^(n+3)-2^(n+4))/72. [Yahia Kahloune, May 25 2013]
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-4x)(1-5x)(1-8x)), {x, 0, 30}], x] (* Harvey P. Dale, Apr 02 2020 *)
CROSSREFS
Sequence in context: A135487 A025965 A276201 * A152494 A171158 A022033
KEYWORD
nonn,easy
AUTHOR
STATUS
approved